This is What You Need to Know Before You Buy a Camera Module

This is What You Need to Know Before You Buy a Camera Module


Perhaps it is not the first time you have heard the words camera module. If you have ever bought a phone, computer, or tablet, then you likely have an idea of what I am saying. A high-resolution camera module is the primary unit of image and video input. It looks like a simple small circle at the back of your smartphone, but it comprises very complex components.

What is a Camera Module?

It can also be called a camera compact module, abbreviated as CCM. A good example is a UVC camera module. There are four major complex components of the camera module: the lens, the sensor, FPC, and the digital signal processor (DSP). Out of these four, the lens, sensor, and DSP are responsible for a good or poor-quality camera. It is also essential to know the three technologies employed in designing and manufacturing a CCM. They are; optical design technology, aspherical mirror production technology, and optical coating technology.

What is the Working Principle?

The object seen through the lens gathers light through a charge-coupled device (CCD) or complementary metal oxide semiconductor (CMOS) integrated circuit. The light signal is converted to electrical signals, which pass through the internal image processor (ISP) and into a digital signal processor (DSP). After that, it is converted into YUV, GRB, or other formats of an image signal.

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Dig Deeper in CCM Components:

Lens: A lens is a device that can receive light signals and converge them into sensor CMOS/CCD. The lens regulates the amount of light taken by the sensor.

Voice Coil Motor (VCM): This is basically a motor. It uses the same principle as a speaker. It is characterized by a high-frequency response and a high-precision feature.

IR Cut (Infrared Cut Filter): This component detects the intensity of the light that is received from the sensor. There are other camera modules with dual filters. To put it simply, dual filters have the ability to automatically switch filters in the daytime or nighttime in order for the best imaging effect to be obtained.

Image Sensor: It is a semiconductor chip whose surface is filled with millions to tens of millions of photodiodes. The light is converted into electrical signals. The sensor works just like the human eye.

DSP: This is mainly used to process the output signal of the front image sensor. It is applied to quickly implement various digital signal processing algorithms in real time.

Conclusion: Your choice of a camera module will greatly depend on what you plan to use it for. Before you purchase one, ensure it is compatible with the functionality. So if you want a high resolution camera module, get one from today.


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